:root{
  --primary:#d4001a;        /* 艺猫红 */
  --primary-dark:#a80015;
  --dark:#111418;
  --accent:#ffcf33;
  --text:#222;
  --gray:#777;
  --border:#e8e8e8;
  --radius:12px;
  --shadow-hover:0 10px 30px rgba(0,0,0,.10);
  --maxw:1200px;
}
*{box-sizing:border-box;}
body{margin:0;font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB",sans-serif;color:var(--text);background:#fff;line-height:1.6;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px;}
.center{text-align:center;}
h1,h2,h3,h4{margin:0 0 .5em;}

/* ===== 导航 ===== */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);transition:.25s;}
.site-header.scrolled{box-shadow:0 4px 20px rgba(0,0,0,.06);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:64px;}
.brand{display:flex;align-items:center;gap:10px;}
.brand-logo{height:34px;width:auto;}
.brand-text{font-weight:700;font-size:17px;color:var(--text);line-height:1.1;display:flex;flex-direction:column;}
.brand-text small{font-size:10px;font-weight:400;color:var(--gray);letter-spacing:1px;}
.main-nav{display:flex;align-items:center;gap:26px;}
.main-nav a{font-size:15px;color:#333;position:relative;padding:4px 0;}
.main-nav a:hover,.main-nav a.active{color:var(--primary);}
.main-nav a.active::after{content:"";position:absolute;left:0;bottom:-6px;width:100%;height:2px;background:var(--primary);}
.nav-cta{background:var(--primary);color:#fff!important;padding:8px 18px;border-radius:20px;font-weight:600;}
.nav-cta:hover{background:var(--primary-dark);}
.nav-toggle{display:none;background:none;border:none;font-size:26px;cursor:pointer;}

/* ===== Hero 轮播 ===== */
.hero-slider{position:relative;height:560px;overflow:hidden;background:#0a0a0a;}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 1.2s ease,transform 7s ease-out;pointer-events:none;}
.hero-slide.active{opacity:1;pointer-events:auto;transform:scale(1.06);}
.hero-slide-bg{position:absolute;inset:0;background-color:#111;background-size:cover;background-position:center;}
.hero-slider::after{content:"";position:absolute;left:0;right:0;bottom:0;height:40%;background:linear-gradient(180deg,rgba(0,0,0,0) 0%,rgba(0,0,0,.5) 100%);z-index:1;pointer-events:none;}
.hero-brand{position:absolute;left:56px;bottom:48px;z-index:5;display:flex;align-items:center;gap:14px;opacity:0;transform:translateY(12px);transition:all 1s ease .3s;}
.hero-slide.active .hero-brand{opacity:1;transform:translateY(0);}
.hero-brand .brand-logo{height:40px;filter:drop-shadow(0 2px 10px rgba(0,0,0,.5));}
.hero-brand .brand-text{color:#fff;text-shadow:0 2px 10px rgba(0,0,0,.5);}
.hero-brand .brand-text small{color:rgba(255,255,255,.7);}
.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:10;width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);color:#fff;font-size:26px;cursor:pointer;opacity:0;transition:.3s;}
.hero-slider:hover .slider-arrow{opacity:1;}
.slider-arrow.prev{left:24px;}.slider-arrow.next{right:24px;}
.slider-dots{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);z-index:10;display:flex;gap:8px;padding:6px 14px;border-radius:30px;background:rgba(0,0,0,.2);}
.slider-dot{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.4);cursor:pointer;transition:.3s;}
.slider-dot.active{width:28px;border-radius:4px;background:#fff;}
.slider-progress{position:absolute;bottom:0;left:0;right:0;height:2px;background:rgba(255,255,255,.08);z-index:10;}
.slider-progress-bar{height:100%;background:#fff;width:0;opacity:.5;}

/* ===== 通用区块 ===== */
.section{padding:64px 0;}
.section-title{text-align:center;font-size:30px;font-weight:800;}
.section-sub{text-align:center;color:var(--gray);margin-bottom:36px;font-size:16px;}
.page-banner{background:linear-gradient(120deg,var(--primary),var(--primary-dark));color:#fff;padding:70px 0;text-align:center;}
.page-banner h1{font-size:34px;margin-bottom:8px;}
.page-banner p{opacity:.9;font-size:16px;}

/* 数据条 */
.stats-bar{background:var(--dark);padding:42px 0;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center;color:#fff;}
.stat-num{font-size:38px;font-weight:800;color:var(--accent);}
.stat-label{font-size:14px;opacity:.75;}

/* 卡片网格 */
.advantage-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.advantage-card{padding:30px 22px;border:1px solid var(--border);border-radius:var(--radius);text-align:center;transition:.2s;background:#fff;}
.advantage-card:hover{border-color:var(--primary);box-shadow:var(--shadow-hover);transform:translateY(-4px);}
.card-icon{font-size:40px;margin-bottom:14px;}
.card-img{width:100%;height:160px;object-fit:cover;border-radius:8px;margin-bottom:14px;}
.advantage-card h3{font-size:18px;margin-bottom:8px;}
.advantage-card p{font-size:14px;color:var(--gray);}
.card-list{list-style:none;padding:0;margin:12px 0 0;text-align:left;font-size:13px;color:#555;}
.card-list li{padding:4px 0 4px 18px;position:relative;}
.card-list li::before{content:"✓";color:var(--primary);position:absolute;left:0;font-weight:700;}
.service-cards .advantage-card{text-align:left;}
.service-cards .card-icon{font-size:34px;}

/* 流程步骤 */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;}
.step{text-align:center;position:relative;}
.step-num{width:46px;height:46px;line-height:46px;border-radius:50%;background:var(--primary);color:#fff;font-size:20px;font-weight:700;margin:0 auto 10px;}
.step-body h4{font-size:16px;}.step-body p{font-size:13px;color:var(--gray);}

/* 加盟条件 */
.cond-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.cond-card{border:1px solid var(--border);border-radius:var(--radius);padding:22px;}
.cond-card h4{font-size:17px;color:var(--primary);}
.cond-val{font-size:20px;font-weight:700;margin:4px 0 8px;}
.cond-card ul{margin:0;padding-left:18px;color:var(--gray);font-size:13px;}

/* FAQ */
.faq-list{max-width:820px;margin:0 auto;}
.faq-item{border:1px solid var(--border);border-radius:10px;margin-bottom:12px;overflow:hidden;}
.faq-q{width:100%;text-align:left;background:#fff;border:none;padding:16px 20px;font-size:16px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;}
.faq-arrow{color:var(--primary);font-size:22px;transition:.2s;}
.faq-item.open .faq-arrow{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s;padding:0 20px;}
.faq-item.open .faq-a{max-height:400px;padding:0 20px 16px;}

/* 时间线 */
.timeline{position:relative;padding-left:30px;}
.timeline::before{content:"";position:absolute;left:7px;top:0;bottom:0;width:2px;background:var(--border);}
.tl-item{position:relative;margin-bottom:24px;}
.tl-dot{position:absolute;left:-30px;top:4px;width:16px;height:16px;border-radius:50%;background:var(--primary);border:3px solid #fff;box-shadow:0 0 0 2px var(--primary);}
.tl-content h4{margin:0 0 4px;}.tl-content p{margin:0;color:var(--gray);font-size:14px;}

/* 荣誉 */
.honor-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.honor-card{border:1px solid var(--border);border-radius:10px;padding:22px;text-align:center;font-weight:600;color:#444;transition:.2s;}
.honor-card:hover{border-color:var(--primary);color:var(--primary);}
.honor-icon{font-size:34px;margin-bottom:8px;}

/* 故事 / 特性块 */
.story-grid,.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;}
.feature-grid.reverse{direction:rtl;}.feature-grid.reverse>*{direction:ltr;}
.feature-text h3{font-size:24px;color:var(--primary);}
.story-img img,.feature-img img{border-radius:var(--radius);box-shadow:var(--shadow-hover);width:100%;}

/* CTA 表单 */
.cta-section{background:#fafafa;}
.cta-form{max-width:560px;margin:0 auto;display:grid;gap:14px;}
.cta-form input,.cta-form textarea{padding:12px 14px;border:1px solid var(--border);border-radius:10px;font-size:15px;font-family:inherit;width:100%;}
.cta-form textarea{min-height:90px;resize:vertical;}
.btn-primary{background:var(--primary);color:#fff;border:none;padding:12px 28px;border-radius:10px;font-size:15px;font-weight:600;cursor:pointer;transition:.2s;}
.btn-primary:hover{background:var(--primary-dark);}
.btn-outline{display:inline-block;margin-top:24px;padding:10px 26px;border:1.5px solid var(--primary);color:var(--primary);border-radius:24px;font-weight:600;transition:.2s;}
.btn-outline:hover{background:var(--primary);color:#fff;}

/* 案例 / 新闻 */
.case-grid,.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.case-card,.news-card{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.2s;background:#fff;}
.case-card:hover,.news-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);}
.case-card img,.news-card img{height:200px;object-fit:cover;width:100%;}
.case-body,.news-body{padding:16px 18px;}
.case-body h4,.news-body h4{font-size:17px;margin-bottom:4px;}
.case-body p,.news-body p{color:var(--gray);font-size:13px;margin:0;}
.article-body{max-width:820px;}
.article-body img{max-width:100%;border-radius:10px;margin:18px 0;}
.article-cover{max-height:420px;object-fit:cover;width:100%;border-radius:var(--radius);}

/* 联系页 */
.contact-wrap{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;}
.contact-form-box{max-width:none;}
.contact-form-box input,.contact-form-box textarea{padding:12px 14px;border:1px solid var(--border);border-radius:10px;font-size:15px;font-family:inherit;width:100%;margin-bottom:14px;}
.contact-form-box textarea{min-height:110px;}
.contact-info .info-row{font-size:16px;margin-bottom:14px;padding-bottom:14px;border-bottom:1px solid var(--border);}
.alert{padding:12px 16px;border-radius:10px;margin-bottom:16px;font-size:14px;}
.alert-ok{background:#eafaf0;color:#1a8a4a;}
.alert-err{background:#fdecec;color:#c33;}

/* 页脚 */
.site-footer{background:var(--dark);color:#cfd3d8;padding:50px 0 0;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px;}
.site-footer .brand-text{color:#fff;}
.site-footer h4{color:#fff;margin-bottom:14px;}
.site-footer ul{list-style:none;padding:0;margin:0;}
.site-footer li{margin-bottom:8px;font-size:14px;}
.site-footer a:hover{color:var(--accent);}
.footer-desc{font-size:14px;line-height:1.7;margin-top:14px;max-width:420px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);margin-top:36px;padding:18px 0;text-align:center;font-size:13px;color:#8a9099;}

/* 响应式 */
@media(max-width:900px){
  .advantage-grid,.honor-grid,.steps,.cond-grid,.case-grid,.news-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .story-grid,.feature-grid,.contact-wrap{grid-template-columns:1fr;}
  .feature-grid.reverse{direction:ltr;}
  .footer-grid{grid-template-columns:1fr;}
}
@media(max-width:600px){
  .main-nav{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;padding:16px;gap:14px;box-shadow:0 8px 20px rgba(0,0,0,.08);}
  .main-nav.open{display:flex;}
  .nav-toggle{display:block;}
  .hero-slider{height:380px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px;}
  .advantage-grid,.honor-grid,.steps,.cond-grid,.case-grid,.news-grid{grid-template-columns:1fr;}
  .section{padding:44px 0;}
}